Installation instructions, Swingalign, Axle alignment – SAF-HOLLAND XL-AS11011OM CBX40/CB-4000 Slider Suspension Systems User Manual

Page 15

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XL-AS11011OM-en-US Rev F · 2014-06-13 · Amendments and Errors Reserved · © SAF-HOLLAND, Inc., SAF-HOLLAND, HOLLAND, SAF,
and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.

Installation Instructions

15

Figure 20

Figure 21

Figure 19

ALIGNMENT
BOLT

WASHER

“A” ARROWS - AXLE FORWARD
“B” ARROWS - AXLE REARWARD

NOTE: 1/2 TURN OF FREE PLAY
IS ACCEPTABLE

A

KINGPIN

B

D

C

13. SwingAlign

Axle Alignment

IMPORTANT: Axle alignment can only be achieved if the

lockpin holes are the same distance from the
kingpin, left and right. Axle alignment should
ALWAYS be done while the trailer is empty.

13.1 Alignment Preparation

1. Pull the trailer in a straight line for a sufficient distance

to ensure there are no binds in the suspension.

2. Lock the trailer brakes and pull the trailer straight forward

so the locking pins rest against the rear of the holes in
the body rails.

3. Disengage the trailer parking brakes and ensure the

trailer is empty.

4. Manually measure or use an optical device specifically

designed for alignment measuring to determine the following:

a. Measure the distance from the king pin to

the centerline of the front axle spindles. It is
recommended that spindle extensions be utilized.

b. Dimensions A and B (Figure 19) must be equal to

within 1/8" (3 mm).

c. Measure the distance from the centerline of the front

axle spindles to the centerline of the rear axle spindles.

d. Dimensions C, D, E and F (Figure 19) must be equal

to within 1/16" (1 mm).

13.2 Alignment Instructions

1. Using the measurements from Step 4, align each axle.

Align by rotating the alignment bolt head using a 1-3/8"
socket wrench on the front face of the roadside frame
bracket. Rotate clockwise to move axle forward
(A Arrows); counterclockwise to move axle rearward
(B Arrows) (Figure 20). Approximately 250 ft.-lbs.
/tN XJMMCFSFRVJSFE

IMPORTANT: DO NOT loosen the pivot bolt.

IMPORTANT: Two scribe lines on the side of the frame

bracket indicate maximum adjustment for axle
alignment. If the edge of the visible washer
touches either scribe line the SwingAlign

axle alignment adjustment is “out of stroke”
(Figure 15). Inspect and repair trailer
components as necessary and realign.

IMPORTANT: The

SwingAlign

design maintains proper

alignment without welding and without
loosening of the pivot connection. DO NOT
weld alignment bolt or pivot bolts.
(Figure 16). If connection requires tightening,
use a 1-11/16" socket wrench and torque to
GUMCT /tN

ALIGNMENT BOLT ASSEMBLY

WASHER

ALIGNMENT
PLATES

SCRIBE
LINES

PIVOT BOLT

ALIGNMENT BOLT

A = B ± 1/8" (3 MM)
C = D ± 1/16" (1.6 MM)

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